RESEARCH PAPERS: Vibration and Sound

Flow Instability Due to a Diameter Reduction of Limited Length in a Long Annular Passage

[+] Author and Article Information
M. W. Parkin

United Kingdom Atomic Energy Authority, Seascale, Cumbria CA201PF United Kingdom

E. R. France, W. E. Boley

National Nuclear Corporation, Leicester LE3 8PW United Kingdom

J. Vib., Acoust., Stress, and Reliab 105(3), 355-360 (Jul 01, 1983) (6 pages) doi:10.1115/1.3269113 History: Received June 03, 1981; Online November 23, 2009


Flow in an annular passage is a common feature in the fuel channels of the UK Advanced Gas Cooled Reactors, and in some cases has required investigation to avoid or reduce flow-induced vibration of reactor components. A number of studies have been made of vibration induced by annular flow, and these are briefly reviewed in the first part of this paper to provide some background to the topic. The second part of the paper goes on to describe the investigation of the most recently recognized problem of this type, which is a flow instability caused by a diameter reduction of limited length in a long annulus. A method of eliminating the mechanism is also described.

Copyright © 1983 by ASME
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